Ophiomyxa
Ophiomyxa is a genus of brittle stars in the family Ophiomyxidae. They are commonly known as basket stars due to their branching arms that resemble a basket. These echinoderms are found in various marine environments, from shallow coastal waters to deep sea trenches.
Characteristics
Ophiomyxa species are characterized by their flexible and branching arms, which can be numerous and extend to several times the length of the central disc. The arms are covered in small, pointed scales or spines, and they lack the characteristic radial shields seen in other brittle stars. Their bodies are typically soft and gelatinous, with a relatively small central disc.
Environments
Ophiomyxa species are found in a variety of marine environments, including:
- Shallow coastal waters, especially in rocky and coral reef areas
- Deep sea trenches, where they may live in association with hydrothermal vents
- Mangrove forests
Feeding
Ophiomyxa species are suspension feeders. They use their branching arms to capture small particles of food, such as plankton and detritus, from the surrounding water. The arms are covered in mucus, which traps the food particles, and the food is then transported towards the mouth located on the underside of the central disc.
Reproduction
Ophiomyxa species reproduce sexually. The male and female individuals release sperm and eggs into the water, where fertilization occurs. The fertilized eggs develop into larvae that are planktonic, meaning they drift in the water currents. After a period of time, the larvae settle to the bottom and transform into juvenile brittle stars.
Examples of Ophiomyxa Species
- Ophiomyxa flaccida
- Ophiomyxa serpens
- Ophiomyxa valida
References
For more information, please refer to the following sources: